[Pen-l] warming our hearts...

["Charles Brown" <charlesb@xxxxxxxxxxxxxxxxxxxxx>]

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From: "Jim Devine" <jdevine03@xxxxxxxxx> 


Where Life Found Refuge During Mass Extinction
Michael Reilly, Discovery News

^^^^
CB: Wow. That's a puncuation

^^^^

Oct. 3, 2008 -- During the worst apocalypse the planet has ever known,
somehow, life found a way to survive. But how? Scientists now think
they have an answer: a nurturing refuge in the shallow continental
shelf waters of northwestern Pangea.

During the end of the Permian era 250 million years ago, global
warming ran rampant on Earth, extinguishing 95 percent of life in the
ocean, and 70 percent of life on land.

Through the darkest days, the planet was a barren wasteland. Ocean
circulation, so vital to our modern climate, had shut off. Huge algal
blooms sucked the seas dry of oxygen. Poisonous hydrogen sulfide built
up to lethal concentrations in the water and may have even been
belched into the atmosphere, suffocating organisms on shore.



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